AI Insight
Scientists have discovered that the human brain develops from two distinct cellular systems, suggesting that evolution merged two ancient nervous systems that originally served different functions. This finding challenges the traditional view of the brain as a single unified organ and provides new insights into brain evolution. The research has enabled scientists to successfully grow human hindbrain neurons in laboratory settings for the first time.
Why it matters
This discovery opens new avenues for studying and potentially treating diseases affecting the brainstem and motor neurons, including ALS and spinal muscular atrophy. The ability to cultivate hindbrain neurons in the lab provides researchers with a crucial tool for understanding these previously difficult-to-study conditions and developing targeted therapies.
Understand the Science
Scientists have found that the human brain develops from two distinct cellular systems, suggesting that evolution fused together two ancient nervous systems with very different jobs. The discovery also allowed researchers to grow human hindbrain neurons in the lab, opening new possibilities for studying ALS, spinal muscular atrophy, and other brainstem diseases.
Source: Stanford scientists discover the human brain may actually be two separate organs